Results 11 to 20 of about 11,721 (270)

Insight into the Ta alloying effects on the oxidation behavior and mechanism of cast TiAl alloy

Materials & Design
The effects of Ta alloying on the isothermal oxidation behavior and mechanism of a cast Ti-48Al-3Nb-1.5Ta (at.%) TiAl alloy are investigated. It exhibits excellent oxidation resistance with mass gains of 0.95 and 1.29 mg·cm−2 after 900 °C oxidation for ...
Zitong Gao, Rui Hu, Hang Zou, Mi Zhou, Xian Luo   +4 more
doaj   +3 more sources

Deformation and damage behaviors of as-cast TiAl-Nb alloy during creep

Progress in Natural Science: Materials International, 2018
Abstract By means of creep properties measurement and microstructure observation, the deformation and damage behavior of an as-cast TiAl-Nb alloy during creep at temperature near 750 °C were investigated. The results showed that the microstructure of the alloy consisted of lamellar γ/α2 phase, and the boundaries consisted of γ phase located in ...
Shunke Zhang, Sugui Tian, Xiaoxia Lv, Huichen Yu, Ning Tian, Zehui Jiao, Guoqi Zhao, Deyuan Li   +7 more
openaire   +3 more sources

Thermomechanical characterization and conventional rolling of a novel β-solidifying γ-TiAl alloy with excellent comprehensive properties

Journal of Materials Research and Technology, 2023
The development of the β-solidifying γ-TiAl alloys with good oxidation resistance and thermal deformation ability has always been crucial for the practical application.
Junjie Hao, Kun Qian, Xiaobing Li, Peng Xue, Lei Shu, Bo Chen, Kui Liu   +6 more
doaj   +1 more source

Influence of a rich sulphur atmosphere on the phase development and kinetic behaviour of differentially processed RNT650 γ - TiAl alloys

Journal of Materials Research and Technology, 2023
The influence of sulphur atmosphere on conventionally cast (CM) and on electron beam melted (EBM) γ - TiAl RNT650 alloy exposed to a 1% (vol.) H2S – air atmosphere at 650 °C for 500 h was investigated. The material produced by CM showed a lower mass gain
T. Dudziak, E. Rząd, J. Morgiel, A. Kirchner, T. Polczyk, G. Moskal, B. Klöden, T. Weißgärber, D. Toboła, M. Wójcicki   +9 more
doaj   +1 more source

Microstructure and mechanical properties of large size as-cast Ti-43Al-9V-0.2Y (at.%) alloy ingot from brim to centre [PDF]

, 2011
A Ti-43Al-9V-0.2Y (at.%) alloy ingot with the size of Ф160×400mm was prepared by vacuum arc remelting (VAR). The microstructure of the as-cast Ti-43Al-9V-0.2Y alloy was composed of B2/α₂/γ lamellar colonies and massive B2 and γ phases which were ...
Chen, Yuyong, Kong, Fantao, Xu, Xingchen, Zhang, Deliang   +3 more
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Criteria of grain refinement induced by ultrasonic melt treatment of aluminum alloys containing Zr and Ti [PDF]

, 2010
Copyright @ 2010 The Authors. This paper was published in Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 41(8), 2056 - 2066, and is made available as an electronic reprint with the permission of ASM International.
B.S. Murty, C. Vives, D.G. Eskin, H.J. Seemann von, J. Campbell, L. Greer, L. Katgerman, L. Zhang, M. Easton, M.A. Easton, N. Iqbal, O.A. Kapustina, O.V. Abramov, R. Chow, R. Trivedi, S. Tsunekawa, T. Tanaka, T.V. Atamanenko, T.V. Atamanenko, T.V. Atamanenko, V.I. Dobatkin, Y. Han   +21 more
core   +2 more sources

Lightweight metallic matrix composites. Development of new composites material reinforced with carbon structures [PDF]

, 2019
Carbon nano/micro-structures used as fillers in metallic lightweight alloys matrix composites are receiving considerable attention in scientific research and industrial applications.
Genova, Virgilio, Marini, Danilo, Marra, Francesco, Pulci, Giovanni, Quitadamo, Alessia, Valente, Marco   +5 more
core   +1 more source

Effect of heat treatment and thermomechanical processing on microstructure and tensile property of Ti-44Al-8Nb-0.2W-0.2B-0.5Y alloy

China Foundry, 2020
High Nb-TiAl (Ti-44Al-8Nb-0.2W-0.2B-0.5Y, at.%) ingot was fabricated by vacuum arc remelting (VAR). The as-cast ingot was hot-isostatic pressed (HIP) and homogenizing annealing processed.
Xiao-peng Wang, Fan-tao Kong, Xiao-ping Cao   +2 more
doaj   +1 more source

Subsurface microstructural changes in a cast heat resisting alloy caused by high temperature corrosion [PDF]

, 2010
A cast HP ModNb alloy (Fe–25Cr–35Ni–1Nb, wt.%) was oxidised and carburised in CO–CO2 corresponding to aC = 0.1 and pO2 = 3 1016 atm at 1080 C. Formation of an external, chromium-rich oxide scale led to depletion of this metal in a deep alloy subsurface ...
Baxter, Becker, Belen, Bennett, Brasunas, D. Monceau, D. Oquab, D.J. Young, Ledgeff, Lobnig, Meijering, Mitchell, N. Xu, Smigelskas, Smith, Xu, Young, Young, Young   +18 more
core   +2 more sources

Microstructure Evolution of Gas-Atomized β-Solidifying γ-TiAl Alloy Powder during Subsequent Heat Treatment

Crystals, 2023
To promote the use of γ-TiAl alloys in various domains, such as the aerospace industry, it is pivotal to investigate the unusual phase transformation from rapidly solidified and metastable γ-TiAl toward the equilibrium state.
Sung-Hyun Park, Ozkan Gokcekaya, Ryosuke Ozasa, Ken Cho, Hiroyuki Y. Yasuda, Myung-Hoon Oh, Takayoshi Nakano   +6 more
doaj   +1 more source